| article html file updated | 30 August 2025 13:51 CEST | Update | https://www.mdpi.com/2073-8994/11/4/520 | 
| article html file updated | 21 August 2025 20:37 CEST | Update | - | 
| article html file updated | 19 July 2022 17:24 CEST | Update | - | 
| article html file updated | 12 February 2020 04:24 CET | Update | - | 
| article html file updated | 18 October 2019 02:43 CEST | Update | - | 
| article html file updated | 8 May 2019 20:09 CEST | Update | - | 
| article html file updated | 8 May 2019 20:04 CEST | Update | - | 
| article html file updated | 25 April 2019 14:05 CEST | Update | - | 
| article html file updated | 12 April 2019 04:06 CEST | Update | - | 
| article pdf uploaded. | 12 April 2019 04:05 CEST | Updated version of record | https://www.mdpi.com/2073-8994/11/4/520/pdf | 
| article xml uploaded. | 12 April 2019 04:05 CEST | Update | https://www.mdpi.com/2073-8994/11/4/520/xml | 
| article xml file uploaded | 12 April 2019 04:05 CEST | Update | - | 
| article html file updated | 11 April 2019 10:38 CEST | Update | - | 
| article html file updated | 10 April 2019 23:57 CEST | Original file | - | 
| article pdf uploaded. | 10 April 2019 15:21 CEST | Version of Record | https://www.mdpi.com/2073-8994/11/4/520/pdf-vor | 
| article xml file uploaded | 10 April 2019 15:21 CEST | Original file | - |